[yocto] Linking of external libraries in the recipe

[Priya Agarwal]

Hello,

I have taken a recipe for the package squid from OpenEmbedded.org and have
built it along with the kernel image.

Now I want to edit its recipe so that it will include some external
libraries.
But these libraries are the ones that are generated during the build. So
how do I edit the recipe to include those libraries?

Location of library:  ../yocto/<build-directory>/............/libusdpaa.a

currently the do_compile task is failing as I have used an extra function
whose library I haven't included. Snippet of the error:

| main.cc: In function 'int SquidMainSafe(int, char**)':
| *main.cc:1259:10: error: 'of_init' was not declared in this scope*
| make[3]: *** [main.o] Error 1
| make[3]: *** Waiting for unfinished jobs....
| make[3]: Leaving directory
`/media/NewVolume/yocto/build_t4240qds_release/tmp/work/ppce6500-fsl_networking-linux/squid/3.4.7-r0/squid-3.4.7/src'
| make[2]: *** [all-recursive] Error 1
| make[2]: Leaving directory
`/media/NewVolume/yocto/build_t4240qds_release/tmp/work/ppce6500-fsl_networking-linux/squid/3.4.7-r0/squid-3.4.7/src'
| make[1]: *** [all] Error 2
| make[1]: Leaving directory
`/media/NewVolume/yocto/build_t4240qds_release/tmp/work/ppce6500-fsl_networking-linux/squid/3.4.7-r0/squid-3.4.7/src'
| make: *** [all-recursive] Error 1
| ERROR: oe_runmake failed
| ERROR: Function failed: do_compile (see
/media/NewVolume/yocto/build_t4240qds_release/tmp/work/ppce6500-fsl_networking-linux/squid/3.4.7-r0/temp/log.do_compile.28810
for further information)
ERROR: Task 799
(/media/NewVolume/yocto/meta-oe/meta-networking/recipes-daemons/squid/
squid_3.4.7.bb, do_compile) failed with exit code '1'

I have attached my recipe.
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